these are used only with your friends when your out and about. never use with older people as they may see it as disrespect ok ..... use some of these words with ur friends and have a dorky fun time talking to each other in friendly Japanese slang which is common amongst the new generation of japans youth........

well we should all know that konnichiwa means hello right .... here are a few variations for your friendsin slang
koncha===hi
chiwassu==howdy
konchassu==howdy-ho
nchatt==howdy-do

now for even a more slangier way of saying "hello" there is ossu which like its english counterpart it simply means whats up

but there is an infinate number of variations to the word ossu

ohayo==good morning
kombanwa==evening

ohisashiburi==long time no seenow a slang version
choshi doyo?==hows it hanging